DCompositionCreateDevice

// dcomp.dll
#include <windows.h>

HRESULT DCompositionCreateDevice(
    IDXGIDevice* dxgiDevice,   // optional
    const GUID* iid,
    void** dcompositionDevice
);

<DllImport("dcomp.dll", ExactSpelling:=True)>
Public Shared Function DCompositionCreateDevice(
    dxgiDevice As IntPtr,   ' IDXGIDevice* optional
    ByRef iid As Guid,   ' GUID*
    dcompositionDevice As IntPtr   ' void** out
) As Integer
End Function

' dxgiDevice : IDXGIDevice* optional
' iid : GUID*
' dcompositionDevice : void** out
Declare PtrSafe Function DCompositionCreateDevice Lib "dcomp" ( _
    ByVal dxgiDevice As LongPtr, _
    ByVal iid As LongPtr, _
    ByVal dcompositionDevice As LongPtr) As Long
' VBA7前提(PtrSafe)。32bit Office では LongPtr→Long。Integer=16bit / Long=32bit / LongLong=64bit。

import ctypes
from ctypes import wintypes

DCompositionCreateDevice = ctypes.windll.dcomp.DCompositionCreateDevice
DCompositionCreateDevice.restype = ctypes.c_int
DCompositionCreateDevice.argtypes = [
    ctypes.c_void_p,  # dxgiDevice : IDXGIDevice* optional
    ctypes.c_void_p,  # iid : GUID*
    ctypes.c_void_p,  # dcompositionDevice : void** out
]

require 'fiddle'
require 'fiddle/import'

lib = Fiddle.dlopen('dcomp.dll')
DCompositionCreateDevice = Fiddle::Function.new(
  lib['DCompositionCreateDevice'],
  [
    Fiddle::TYPE_VOIDP,  # dxgiDevice : IDXGIDevice* optional
    Fiddle::TYPE_VOIDP,  # iid : GUID*
    Fiddle::TYPE_VOIDP,  # dcompositionDevice : void** out
  ],
  Fiddle::TYPE_INT)

#[link(name = "dcomp")]
extern "system" {
    fn DCompositionCreateDevice(
        dxgiDevice: *mut core::ffi::c_void,  // IDXGIDevice* optional
        iid: *const GUID,  // GUID*
        dcompositionDevice: *mut *mut ()  // void** out
    ) -> i32;
}
// crates: windows-sys provides ready-made bindings for this API.

$sig = @"
[DllImport("dcomp.dll")]
public static extern int DCompositionCreateDevice(IntPtr dxgiDevice, ref Guid iid, IntPtr dcompositionDevice);
"@
$api = Add-Type -MemberDefinition $sig -Name 'dcomp_DCompositionCreateDevice' -Namespace Win32 -PassThru
# $api::DCompositionCreateDevice(dxgiDevice, iid, dcompositionDevice)

#uselib "dcomp.dll"
#func global DCompositionCreateDevice "DCompositionCreateDevice" sptr, sptr, sptr
; DCompositionCreateDevice dxgiDevice, varptr(iid), dcompositionDevice   ; 戻り値は stat
; dxgiDevice : IDXGIDevice* optional -> "sptr"
; iid : GUID* -> "sptr"
; dcompositionDevice : void** out -> "sptr"
; ※HSP3.7は #func のため戻り値はシステム変数 stat に格納されます。

#uselib "dcomp.dll"
#cfunc global DCompositionCreateDevice "DCompositionCreateDevice" sptr, var, sptr
; res = DCompositionCreateDevice(dxgiDevice, iid, dcompositionDevice)
; dxgiDevice : IDXGIDevice* optional -> "sptr"
; iid : GUID* -> "var"
; dcompositionDevice : void** out -> "sptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

; HRESULT DCompositionCreateDevice(IDXGIDevice* dxgiDevice, GUID* iid, void** dcompositionDevice)
#uselib "dcomp.dll"
#cfunc global DCompositionCreateDevice "DCompositionCreateDevice" intptr, var, intptr
; res = DCompositionCreateDevice(dxgiDevice, iid, dcompositionDevice)
; dxgiDevice : IDXGIDevice* optional -> "intptr"
; iid : GUID* -> "var"
; dcompositionDevice : void** out -> "intptr"
; ※出力/バッファ引数は var 方式(変数を直接渡す)。varptr 方式にも切替可。

import (
	"golang.org/x/sys/windows"
	"unsafe"
)

var (
	dcomp = windows.NewLazySystemDLL("dcomp.dll")
	procDCompositionCreateDevice = dcomp.NewProc("DCompositionCreateDevice")
)

// dxgiDevice (IDXGIDevice* optional), iid (GUID*), dcompositionDevice (void** out)
r1, _, err := procDCompositionCreateDevice.Call(
	uintptr(dxgiDevice),
	uintptr(iid),
	uintptr(dcompositionDevice),
)
_ = err  // syscall.Errno (valid when the call sets last-error)
_ = r1   // HRESULT

function DCompositionCreateDevice(
  dxgiDevice: Pointer;   // IDXGIDevice* optional
  iid: PGUID;   // GUID*
  dcompositionDevice: Pointer   // void** out
): Integer; stdcall;
  external 'dcomp.dll' name 'DCompositionCreateDevice';

result := DllCall("dcomp\DCompositionCreateDevice"
    , "Ptr", dxgiDevice   ; IDXGIDevice* optional
    , "Ptr", iid   ; GUID*
    , "Ptr", dcompositionDevice   ; void** out
    , "Int")   ; return: HRESULT

●DCompositionCreateDevice(dxgiDevice, iid, dcompositionDevice) = DLL("dcomp.dll", "int DCompositionCreateDevice(void*, void*, void*)")
# 呼び出し: DCompositionCreateDevice(dxgiDevice, iid, dcompositionDevice)
# dxgiDevice : IDXGIDevice* optional -> "void*"
# iid : GUID* -> "void*"
# dcompositionDevice : void** out -> "void*"
# なでしこ1は32bit・ANSI(Shift_JIS)。文字列=char*(ANSI)、ポインタ/ハンドル=void*(4byte)。